22042432 has 28 divisors (see below), whose sum is σ = 46045120. Its totient is φ = 10440576.

The previous prime is 22042429. The next prime is 22042469. The reversal of 22042432 is 23424022.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7848 + ... + 10279.

Almost surely, 2^22042432 is an apocalyptic number.

It is an amenable number.

22042432 is an abundant number, since it is smaller than the sum of its proper divisors (24002688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22042432 is a wasteful number, since it uses less digits than its factorization.

22042432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18158 (or 18148 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 22042432 is about 4694.9368472856. The cubic root of 22042432 is about 280.3839630281.

Adding to 22042432 its reverse (23424022), we get a palindrome (45466454).

The spelling of 22042432 in words is "twenty-two million, forty-two thousand, four hundred thirty-two".